gov.noaa.nmfs.inport:69875 eng UTF8 dataset Elevation OCM Partners resourceProvider NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) point 1501957685 NAD83(HARN) / UTM zone 10N2008-11-12publicationEuropean Petroleum Survey Grouphttps://apps.epsg.org/api/v1/CoordRefSystem/3740/export/?format=gmlurn:ogc:def:crs:EPSG:37406.18.3 2006 USFS Lidar: Rogue River - Siskiyou National Forest - Ashland, OR 2006 ashland m9829 2023-05-09 creation publication NOAA/NMFS/EDM 69875 https://www.fisheries.noaa.gov/inport/item/69875 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9829/supplemental/LiDAR_Data_Report_Ashland.pdf WWW:LINK-1.0-http--link Data report Data report download https://coast.noaa.gov/dataviewer/ WWW:LINK-1.0-http--link NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer. download Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data of the Ashland study area in the Rogue River-Siskiyou National Forest on July 1st-4th, 2006 (Julian Days 182-185). The survey area encompassed the city of Ashland as well as the Ashland Creek Watershed, resulting in a delivered LiDAR area of 46,253 acres. Laser points were collected over the study area using an Optech ALTM 3100 LiDAR system. Full overlap (i.e. 50% sidelap) ensured complete coverage and minimized laser shadows created by buildings and tree canopies. A real-time kinematic (RTK) survey was conducted throughout the study area for quality assurance purposes. No metadata record for this data set was provided to the NOAA Office for Coastal Management (OCM). This record was created with information from the data report. A link to the data report is provided in the URL section of this metadata record. This data set contains point cloud data(' in LAZ (compressed LAS) format', ''). The data may have been reprojected or otherwise modified from the original data in an automated process. Disregard projection information in this abstract and refer to the spatial reference section. The primary purpose of the lidar survey was to establish measurements of the bare earth surface, as well as top surface feature data for providing geometric inputs for modeling, other numerical modeling and economic related assessments. USDA Forest Service; Watershed Sciences, Inc. The custom download may be cited as National Oceanic and Atmospheric Administration (NOAA) Digital Coast Data Access Viewer. Charleston, SC: NOAA Office for Coastal Management. Accessed 2026-08-08 at https://coast.noaa.gov/dataviewer. completed NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information custodian notPlanned https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9829/supplemental/2006_Ashland_extent_m9829.kmz This graphic displays the footprint for this lidar data set. KML EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION theme Global Change Master Directory (GCMD) Science Keywords 23.3 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OREGON VERTICAL LOCATION > LAND SURFACE place Global Change Master Directory (GCMD) Location Keywords 23.3 LIDAR > Light Detection and Ranging instrument Global Change Master Directory (GCMD) Instrument Keywords 23.3 Airplane > Airplane platform Global Change Master Directory (GCMD) Platform Keywords 23.3 Lidar - partner (no harvest) project InPort otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-08-08 from the NOAA system. Cite As: OCM Partners, [Date of Access]: 2006 USFS Lidar: Rogue River - Siskiyou National Forest - Ashland, OR [Data Date Range], https://www.fisheries.noaa.gov/inport/item/69875. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-08-08 from the NOAA system. Access Constraints: None otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-08-08 from the NOAA system. Use Constraints: Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-08-08 from the NOAA system. Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of the USDA Forest Service, DOGAMI, NOAA, the Office for Coastal Management or its partners. unclassified 2006 USFS Lidar DEM: Rogue River - Siskiyou National Forest - Ashland, OR NOAA/NMFS/EDM 62821 crossReference vector .4 eng; US elevation -122.82078 -122.614675 42.06215 42.219622 Dates of collection. | Currentness: Ground Condition 2006-07-01 2006-07-04 Zip Zip LAS/LAZ - LASer Zip NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information distributor https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9829 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9829/index.html WWW:LINK-1.0-http--link Bulk Download Bulk download of lidar files in laz format, geographic coordinates, orthometric heights. download dataset Vertical Positional Accuracy Absolute Accuracy: The final quality control measure is a statistical accuracy assessment that compares known RTK ground survey points to the closest laser point. Standard Deviation: 0.04 meters Average Deviation: 0 meters RMSE: 0.04 meters Minimum delta z: -0.16 meters Maximum delta z: 0.18 meters n: 859 Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data of the Ashland study area for the United States Forest Service (USFS) in the Rogue River-Siskiyou National Forest from July 1st to July 4th, 2006. NOAA OCM received the data and ingested it into the Digital Coast Data Access Viewer for distribution. Acquisition. The LiDAR survey utilized an Opetch ALTM 3100 mounted in the belly of a Cessna Grand Caravan 208B. The survey was conducted on July 1st-4th, 2006 (Julian Days 182-185). Quality control (QC) pre-mission flights were performed based on manufacturer’s specifications prior to the survey. The QC flight was conducted at the Ashland, Oregon Airport using known surveyed control points. The positional accuracy of the LiDAR (x, y, z) returns are checked against these known locations to verify the calibration and to report base accuracy. Operational settings included: Laser pulse repetition rate: 70 kHz Operating altitude: 1100 m above ground level Flight speed: 105 knots Scan Angle: +/- 14 degrees from Nadir Scan Pattern: Sawtooth Laser Footprint diameter on ground: 30 cm Number of returns per laser pulse: up to 4 Multi-swath pulse density: at least 7.5 pulses per square meter 2006-07-04T00:00:00 Applications and work flow overview: 1. POSGPS: Monument static GPS data are processed with aircraft GPS data to resolve kinematic corrections. 2. POSProc: Aircraft attitude data are incorporated with post processed aircraft kinematic GPS data. 3. REALM: Laser point data are calculated for the entire survey in *.las format. 4. TerraScan: Data are imported, manually calibrated and filtered for pits/birds. 5. TerraMatch: Internal consistencies derived from GPS and IMU drift are measured and corrected. 6. TerraScan: Develop ground models, statistical accuracy assessments, Geoid03 application, projection changes and transformations. Aircraft Kinematic GPS and IMU Data LiDAR survey datasets are referenced to 1Hz static ground GPS that are set up prior to the LiDAR aircraft survey flight. While surveying, the aircraft collects 2Hz kinematic GPS data. The onboard inertial measurement unit (IMU) collects 200 Hz aircraft attitude data. POSGPS v. 4.2 is used to process the kinematic corrects for the aircraft. The static and kinematic GPS data are then post-processed after the survey to obtain accurate GPS solution and aircraft positions during times of the survey. POSProc v. 4.2 is used to develop a trajectory file that includes corrected aircraft position and attitude information. The trajectory data for the entire flight survey session is incorporated into a final trajectory file that contains accurate and continuous aircraft positions and attitudes. Laser Point Processing Laser point coordinates were computed using the REALM v. 3.5.2 software suite based on independent data from the LiDAR system (pulse time, scan angle), aircraft attitude, and aircraft position. Laser point returns (first through fourth) are assigned an associated (x, y, z) coordinate, along with unique intensity values (1-255). The data are output into one very large LAS v. 1.0 file format; each point has a corresponding scan angle, return number (echo), intensity, and x,y,z (easting, northing, and elevation) information. The initial laser point file is too large to process. To facilitate laser point processing, bins (polygons) were created to divide the dataset into manageable sizes (less than 500 MB and approximately 1 km2 each). Flight lines and LiDAR data were then reviewed to ensure complete coverage of the study area and positional accuracy of the laser points. These processing bins were ultimately aggregated into areas of 0.9375-minute quadrangles (1/64th of a standard USGS 7.5-minute quadrangle). Once the laser point data are imported into bins in TerraScan, a manual calibration test is performed to assess the system offsets for pitch, roll, yaw and scale. Using a geometric relationship developed by Watershed Sciences, each of these offsets is resolved and corrected if necessary. The LiDAR points are then filtered for noise, pits and birds by screening for absolute elevation limits, isolated points and height above ground. Each bin is then inspected for pits and birds manually, and spurious points are removed. For a bin measuring 1 km2, an average of 20-40 points are found to be artificially low or high. The internal calibration is refined using TerraMatch. Points from overlapping lines are tested for internal consistency and final adjustments are made for system misalignments (i.e. pitch, roll, yaw and scale offsets). Once these misalignments are corrected, GPS drift can then be resolved and removed. The resulting dataset is internally calibrated using both manual and automated routines. At this point in the workflow, remaining data have passed initial screening and are deemed accurate. The TerraScan software suite is designed specifically for classifying near-ground laser points (Soinenen, 2004). The processing sequence begins by ‘removing’ all points that are not ‘near’ the earth based on evaluation of the multi-return layers. The resulting bare earth (ground) model is visually inspected and additional ground modeling is performed in site specific areas (over a 50 meter radius) to improve ground detail. This is only done in areas with known ground modeling deficiencies, such as: bedrock outcrops, cliffs, deeply incised stream banks, and dense vegetation. The NOAA Office for Coastal Management (OCM) received lidar point cloud files in laz format from the U.S. Forest Service. The files contained lidar elevation and intensity measurements. The data were in UTM 10N coordinates and NAVD88 (Geoid03) elevations, with all units in meters. The data were classified as: 1-Unclassified, 2-Ground. OCM converted the data from orthometric (NAVD88) elevations to ellipsoid elevations using the Geoid 03 model and converted from UTM 10N NAD83 coordinates in meters, to geographic coordinates. Geokeys were also assigned. These conversions were done to ingest the data into the Digital Coast Data Access Viewer. 2023-05-09T00:00:00 NOAA Office for Coastal Management (843) 740-1202 coastal.info@noaa.gov processor processed lidar data Watershed Sciences (WSI) originator raw lidar data Watershed Sciences (WSI) originator The dataset has been mosaiced, reprojected, and clipped as needed from the original input files using PDAL and GDAL commands. 2026-08-08NOAA Office for Coastal Managementcoastal.info@noaa.govprocessor